fix: set exported_from to noble/1.333 to match compiled package version

Build 183 confirmed that exported_from: noble/1.364 (deployed stemcell) triggers strict per-package validation in BOSH. All compiled packages are built against noble/1.333, so BOSH rejected every release with:

“Packages must be exported from stemcell ‘ubuntu-noble/1.364’, but some packages are not compiled for this stemcell”

Using noble/1.333 (the actual compiled package stemcell) intentionally mismatches the deployed version (1.364). This keeps BOSH in lenient mode where it reuses the 1.333 compiled packages for the 1.364 deployment, identical to how jammy/1.423 worked when jammy was deployed at 1.1202+.

The compiled releases are produced by cf-deployment’s CI against the stemcell version current at release time. When cf-deployment eventually recompiles against noble/1.364, this value should be updated.